/* Local Native Font Definitions (Downloaded WOFF2 Assets — 0.0s Network Latency) */
@font-face {
  font-family: 'DM Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('assets/fonts/font-4.woff2') format('woff2');
}
@font-face {
  font-family: 'DM Serif Display';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('assets/fonts/font-6.woff2') format('woff2');
}
@font-face {
  font-family: 'Manrope';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url('assets/fonts/font-14.woff2') format('woff2');
}

/* 100% Light Mode Theme (Pure White Background) */
:root {
  --bg: #ffffff;
  --ink: #1a1b1e;
  --paper: #ffffff;
  --paper2: #f4f3ef;
  --muted: #6f6b64;
  --line: rgba(26, 27, 30, 0.1);
  --lime: #d7ef72;
  --accent: #354c31;
  --serif: 'DM Serif Display', Georgia, serif;
  --sans: 'Manrope', system-ui, sans-serif;
  --mono: 'DM Mono', monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

/* SVG Utility Classes */
.icon-svg {
  display: inline-block;
  vertical-align: middle;
  stroke: currentColor;
}
.brand-logo-svg {
  display: inline-block;
  vertical-align: middle;
  margin-right: 6px;
}

.site-header {
  height: 80px;
  width: min(1320px, calc(100% - 36px));
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 200;
}

.logo {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--ink);
  text-decoration: none;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.08em;
  white-space: nowrap;
}
.logo span { color: var(--accent); font-size: 28px; line-height: 1; }
.logo small { color: var(--muted); font: 7px var(--mono); letter-spacing: 0.07em; margin-left: 6px; max-width: 55px; line-height: 1.2; }

.main-nav {
  display: flex;
  gap: 20px;
  margin: 0 auto;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.main-nav a { color: var(--muted); text-decoration: none; position: relative; white-space: nowrap; padding: 6px 0; }
.main-nav a:hover, .main-nav a.active { color: var(--ink); }
.main-nav a.active:after {
  content: '';
  position: absolute;
  left: 0; right: 0; height: 2px; bottom: -4px;
  background: var(--accent);
}

.header-actions { display: flex; gap: 10px; align-items: center; }

/* Mobile Menu Toggle Button */
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 10px;
  color: var(--ink);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

/* Sleek Expandable Header Search Input */
.header-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.header-search-input {
  width: 130px;
  height: 36px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 0 14px 0 34px;
  font: 10px var(--mono);
  color: var(--ink);
  outline: none;
  transition: width 0.3s ease, border-color 0.2s, box-shadow 0.2s;
}
.header-search-input:focus {
  width: 180px;
  border-color: var(--accent);
  box-shadow: 0 4px 14px rgba(0,0,0,0.06);
}
.header-search-icon {
  position: absolute;
  left: 11px;
  pointer-events: none;
  color: var(--muted);
}
.header-search-dropdown {
  position: absolute;
  top: 44px;
  right: 0;
  width: 300px;
  max-height: 350px;
  overflow-y: auto;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.12);
  padding: 12px;
  display: none;
  z-index: 300;
  font-size: 11px;
}
.header-search-dropdown.open { display: block; }
.header-search-dropdown div { padding: 8px; border-bottom: 1px solid var(--line); }
.header-search-dropdown div:last-child { border-bottom: 0; }
.header-search-dropdown a { color: var(--ink); text-decoration: none; display: block; }
.header-search-dropdown a:hover { color: var(--accent); }

.hero {
  min-height: 420px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  padding: 56px 0 64px;
  gap: 32px;
}
.kicker, .label {
  font: 9px var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.kicker i {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 8px;
}
.hero h1 {
  font: clamp(38px, 6vw, 82px)/.92 var(--serif);
  letter-spacing: -0.06em;
  margin: 18px 0 20px;
  word-break: break-word;
}
.hero h1 em, .section-heading h2 em, .newsletter h2 em {
  font-style: italic;
  color: var(--accent);
}
.hero-lead {
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 490px;
  margin: 0;
}
.hero-actions { display: flex; align-items: center; gap: 20px; margin-top: 28px; flex-wrap: wrap; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  text-decoration: none;
  border: 0;
  border-radius: 6px;
  padding: 12px 18px;
  font: 10px var(--sans);
  font-weight: 700;
  cursor: pointer;
  gap: 12px;
}
.dark-button { background: var(--ink); color: var(--paper); }
.dark-button span { font-size: 15px; color: var(--lime); }
.text-link, .read-link {
  font: 10px var(--mono);
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 4px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Rich Animated Data Synthesis Hero Graphic */
.hero-aside {
  position: relative;
  display: grid;
  place-items: center;
}
.hero-svg-card {
  position: relative;
  width: 300px;
  height: 300px;
  display: grid;
  place-items: center;
}
.hero-data-svg {
  width: 100%;
  height: 100%;
}
.spin-slow {
  transform-origin: center;
  animation: rotateOrbit 40s linear infinite;
}
.spin-reverse {
  transform-origin: center;
  animation: rotateOrbit 25s linear infinite reverse;
}

@keyframes rotateOrbit {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-badge-tag {
  position: absolute;
  bottom: 16px;
  background: var(--ink);
  color: var(--paper);
  font: 9px var(--mono);
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border-radius: 99px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.pulse-dot {
  width: 6px; height: 6px;
  background: var(--lime);
  border-radius: 50%;
  animation: pulseGlow 2s infinite;
}
@keyframes pulseGlow {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
}

.featured { padding: 20px 0 70px; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 24px; flex-wrap: wrap; gap: 16px; }
.section-heading h2 { font: clamp(28px, 4vw, 42px)/.95 var(--serif); letter-spacing: -0.05em; margin: 8px 0 0; }

.feature-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--paper2);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.feature-image {
  position: relative;
  overflow: hidden;
  background: #2e483a;
  color: #d7ef72;
  min-height: 360px;
}
.feature-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.image-tag {
  position: absolute; top: 16px; left: 16px;
  font: 8px var(--mono); letter-spacing: 0.1em;
  background: rgba(0,0,0,0.65); backdrop-filter: blur(4px);
  padding: 6px 10px; border-radius: 4px; color: #fff; z-index: 2;
}

.feature-content { padding: 36px 40px; display: flex; flex-direction: column; justify-content: center; }
.article-meta { display: flex; justify-content: space-between; color: var(--muted); font: 8px var(--mono); text-transform: uppercase; }
.feature-content h3 { font: clamp(22px, 3vw, 32px)/1.1 var(--serif); letter-spacing: -0.04em; margin: 18px 0 14px; }
.feature-content > p { font-size: 13px; line-height: 1.7; color: var(--muted); margin: 0 0 20px; }

.author { display: flex; gap: 10px; align-items: center; margin-top: auto; font-size: 9px; color: var(--muted); }
.author-avatar {
  width: 27px; height: 27px; display: grid; place-items: center;
  border-radius: 50%; background: var(--accent); color: #fff; font: 8px var(--mono); font-weight: 700;
}
.author strong, .author small { display: block; color: var(--ink); }
.author small { color: var(--muted); font: 8px var(--mono); margin-top: 2px; }

.latest { padding: 0 0 70px; }
.category-pills { display: flex; gap: 6px; flex-wrap: wrap; }
.pill {
  border: 1px solid var(--line); border-radius: 99px;
  background: transparent; color: var(--muted);
  padding: 7px 13px; font: 9px var(--mono); cursor: pointer;
}
.pill.active, .pill:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.article-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
  background: var(--paper);
  display: flex; flex-direction: column; min-height: 350px;
  transition: transform 0.2s, box-shadow 0.2s;
  overflow: hidden;
}
.article-card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,0.06); }
.article-card-image {
  width: 100%; height: 160px;
  border-radius: 8px; overflow: hidden; margin-bottom: 14px; display: block;
}
.article-card-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.article-card .card-top { display: flex; justify-content: space-between; color: var(--muted); font: 8px var(--mono); text-transform: uppercase; margin-bottom: 10px; }
.article-card h3 { font: clamp(18px, 2.2vw, 22px)/1.2 var(--serif); letter-spacing: -0.03em; margin: 0 0 10px; }
.article-card p { font-size: 11px; line-height: 1.65; color: var(--muted); margin: 0; }
.article-card .read-link { margin-top: auto; padding-top: 14px; }
.card-topic { color: var(--accent); font-weight: 700; }

.quote-section {
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 50px 5% 46px; margin-bottom: 70px; position: relative; text-align: center;
}
.quote-mark { color: var(--lime); font: 70px/.4 var(--serif); display: block; margin-bottom: 12px; }
.quote-section blockquote { font: clamp(22px, 3.5vw, 36px)/1.15 var(--serif); letter-spacing: -0.04em; margin: 0 auto; max-width: 720px; }
.quote-section > span { display: block; color: var(--muted); font: 9px var(--mono); margin-top: 20px; }

/* Premium Dark Slate Manifesto Card */
.newsletter {
  background: var(--ink);
  color: var(--paper);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  padding: 48px 48px;
  margin-bottom: 70px;
  border-radius: 16px;
  border: 1px solid var(--line);
  box-shadow: 0 16px 40px rgba(0,0,0,0.1);
}
.newsletter .label { color: var(--lime); font-size: 10px; letter-spacing: 0.12em; }
.newsletter h2 { font: clamp(30px, 4vw, 44px)/.96 var(--serif); letter-spacing: -0.05em; margin: 12px 0 0; color: var(--paper); }
.newsletter h2 em { color: var(--lime); font-style: italic; }

.site-footer { background: var(--ink); color: var(--paper); padding-top: 48px; }
.site-footer .logo { color: var(--paper); }
.site-footer .logo span { color: var(--lime); }
.footer-top { display: grid; grid-template-columns: 1fr 2fr; padding-bottom: 44px; gap: 32px; }
.footer-brand p { font: 16px/1.3 var(--serif); color: #aaa; margin-top: 20px; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-links > div { display: flex; flex-direction: column; gap: 10px; }
.footer-links .label { color: #777; }
.footer-links a { color: #c7c6bd; text-decoration: none; font-size: 10px; }
.footer-links a:hover { color: var(--lime); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.15); padding: 18px 0 25px; display: flex; justify-content: space-between; color: #777; font: 8px var(--mono); flex-wrap: wrap; gap: 12px; }

/* DATA AUDIT METRIC CARDS */
.data-audit-card {
  background: var(--paper2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px 28px;
  margin: 32px 0;
}
.data-audit-header {
  margin-bottom: 20px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}
.data-audit-tag {
  font: 9px var(--mono);
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: 4px;
}
.data-audit-header h4 {
  font: 20px/1.2 var(--serif);
  letter-spacing: -0.03em;
  margin: 0;
  color: var(--ink);
}

.data-metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.data-metric-item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.metric-label {
  font: 9px var(--mono);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.metric-value {
  font: 16px/1.2 var(--sans);
  font-weight: 800;
  color: var(--ink);
}
.metric-value.text-accent { color: var(--accent); }
.metric-desc {
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
  margin: 0;
}

/* RESPONSIVE NAVIGATION UX (<900px & <600px) */
@media(max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding: 40px 0 48px; text-align: left; }
  .hero-aside { display: none; }
  .feature-card { grid-template-columns: 1fr; }
  .feature-image { min-height: 240px; height: 240px; }
  .feature-content { padding: 28px 24px; }
  .article-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .newsletter { grid-template-columns: 1fr; padding: 36px 28px; gap: 24px; }
  .footer-top { grid-template-columns: 1fr; gap: 36px; }
  .data-metric-grid { grid-template-columns: 1fr; }

  /* Mobile Navigation Tray */
  .mobile-menu-btn { display: inline-flex; }
  .main-nav {
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 30px rgba(0,0,0,0.08);
    flex-direction: column;
    padding: 16px 24px;
    gap: 16px;
    display: none;
  }
  .main-nav.mobile-open { display: flex; }
  .main-nav a.active:after { display: none; }
  .main-nav a { border-bottom: 1px solid var(--line); padding-bottom: 10px; }
  .main-nav a:last-child { border-bottom: 0; }
}

@media(max-width: 600px) {
  .wrap { width: calc(100% - 32px); }
  .site-header { height: 68px; }
  .logo { font-size: 19px; }
  .logo span { font-size: 24px; }
  .logo small { display: none; }
  .main-nav { top: 68px; }
  .header-search-input { width: 90px; height: 32px; font-size: 9px; }
  .header-search-input:focus { width: 130px; }
  .header-search-dropdown { width: calc(100vw - 32px); right: -10px; }
  .hero { padding: 28px 0 36px; }
  .hero h1 { font-size: 34px; margin: 12px 0 14px; }
  .hero-lead { font-size: 13px; line-height: 1.6; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: 12px; margin-top: 20px; }
  .hero-actions .button { width: 100%; justify-content: center; }
  .section-heading { margin-bottom: 18px; }
  .section-heading h2 { font-size: 26px; }
  .feature-image { height: 180px; min-height: 180px; }
  .feature-content { padding: 20px 16px; }
  .feature-content h3 { font-size: 20px; margin: 12px 0 10px; }
  .feature-content > p { font-size: 12px; line-height: 1.6; margin-bottom: 16px; }
  .article-grid { grid-template-columns: 1fr; gap: 18px; }
  .article-card { padding: 16px; min-height: auto; }
  .article-card-image { height: 140px; margin-bottom: 12px; }
  .article-card h3 { font-size: 18px; }
  .article-card p { font-size: 11px; }
  .quote-section { padding: 36px 16px; margin-bottom: 48px; }
  .quote-mark { font-size: 50px; margin-bottom: 6px; }
  .quote-section blockquote { font-size: 20px; line-height: 1.25; }
  .newsletter { padding: 24px 20px; margin-bottom: 48px; border-radius: 12px; }
  .newsletter h2 { font-size: 26px; }
  .footer-links { grid-template-columns: 1fr 1fr; gap: 20px; }
  .footer-links > div:last-child { grid-column: span 2; }
  .data-audit-card { padding: 18px 16px; margin: 24px 0; }
}